€ R P R I S. ^4.1 



bens adiungi deberet , cx qua porro vicilTim pro dato 

 tempore / Talorcs litterarum r et ^, limcque angulos 

 ^ ct V, concludere liceret. Qiiae determinatio fi cutn ob- 

 leruationibus minus conueniret, indicio id eflet, conftantes 

 non rcde efle afliimtas , ficquc tandem pluribus iiuius- 

 modi tabulis conftrudis ^ veritas iiide non difficulier 

 erueretur. 



56. Cura autem inprimis et corporis M loca 

 nofle conueniat , \bi eius diflantia ab alterutro pundlo- 

 rum fixorum A et B cft maxima vel minima, quem- 

 admodum hoc deOniri oportcat videamus Quia diftan* 

 tia AM eO: vzzjj^f!^:^^ ^ eius diffcrentiale 



miliilo aequale pofitum, feu /-\— j^^^cof.(^-4-'vi) indi- 

 cabit loca , quibus diftantia A M ell vel maxima , vcl 

 minima. Pofito ergo tang.i^r^P et tang 5^ = ^, 



ob col.{^-\-yi) (■_Hf)p)(<-+-.2.]) , nabebimub ^ ~? (TT7i¥,-^^. 

 Fadoque porro ^ </ iz: r , ^rz .f, feu p — Vrs^qr^V-^ 



fiet (lr_^_i)(j(i4.„-) + r(i -Viiljr^tr^-^^^ll-^i-fMi+ir/ 

 feu dr{i-\-sY = dsii-r)\ Vbi ergo eft (^^^r^;^. 

 ibi diftamia AMzna; efl: vel maxinia vel minima. 



dr ds 



57. Cum igitur fupra inuenerimus -/ — ~ , pro 



R S 



his locis habemus ( , ^r )^—;- , _(_s )« * vnde relatio 

 inter quantitates finitas r et j- eruitur , quae clt : 



f(i-}-j)'(A + B-|-D-l-2Er-(A-^-B-D)rr)r= 



Hi ~r)'(B~A-D-4-aEj-(B-A + D)jj) 

 Tom.X.Nou.Comm. Hh vndc 



